The Evelyn Hotel, which is right next door to the reception venue, will be opening their bar early to accommodate any guests who would like to gather there between the ceremony and reception. Of course, you are also more than welcome to return to your hotel to freshen up or explore other nearby spots —check out our “Things to Do” page for local suggestions.
This website currently lists all the road closures: https://www.centralpark.com/things-to-do/activities/road-and-street-closures-for-the-nyc-marathon/